use package TDDFPT, you can use either turbo_lanczos.x or turbo_davidson.<span></span><br><br>On Thursday, April 2, 2015, Winfred Mulwa <<a href="mailto:mulwawinfred@gmail.com">mulwawinfred@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Dear all,<br></div>Please somebody assist, how do i get optical properties of <br></div>a system using quantum espresso?<br></div>Regards<br><div><div><div><div><div><div dir="ltr"><div>Mulwa Winfred.<br>D Phil Student, Computational Material Science Group,<br>University of the Free State - QwaQwa,<br></div>South Africa.<br></div></div>
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</blockquote><br><br>-- <br><div dir="ltr">===================<br>Dr. Xiaochuan Ge (Giovanni)<div>Center for Functional Nanomaterials<br><div>Brookhaven national laboratory </div><div>===================</div></div></div><br>